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30125448 = 23322811489
BaseRepresentation
bin111001011101…
…0110110001000
32002200112100100
41302322312020
530203003243
62553405400
7514030203
oct162726610
962615310
1030125448
1116006771
12a109860
13631a112
14400293a
1529a10d3
hex1cbad88

30125448 has 48 divisors (see below), whose sum is σ = 81935100. Its totient is φ = 9999360.

The previous prime is 30125429. The next prime is 30125453. The reversal of 30125448 is 84452103.

It can be written as a sum of positive squares in 2 ways, for example, as 30008484 + 116964 = 5478^2 + 342^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19488 + ... + 20976.

Almost surely, 230125448 is an apocalyptic number.

It is an amenable number.

30125448 is an abundant number, since it is smaller than the sum of its proper divisors (51809652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30125448 is a wasteful number, since it uses less digits than its factorization.

30125448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782 (or 1775 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 30125448 is about 5488.6654115550. The cubic root of 30125448 is about 311.1557550824.

The spelling of 30125448 in words is "thirty million, one hundred twenty-five thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 281 562 843 1124 1489 1686 2248 2529 2978 3372 4467 5058 5956 6744 8934 10116 11912 13401 17868 20232 26802 35736 53604 107208 418409 836818 1255227 1673636 2510454 3347272 3765681 5020908 7531362 10041816 15062724 30125448